A Novel and Practical Amination of 4,5-Dichloropyridazin-3-ones via Reduction with Hydrazine Hydrate
作者:Song Cao、Xuhong Qian、Gonghua Song、Xiayu Huang
DOI:10.1246/cl.2001.54
日期:2001.1
A novel and simple protocol: the direct amination of 4,5-dichloropyridazinones can be carried out in hydrazine hydrate under mild conditions. 4-Chloro-5-hydrazinopyridazin-3-ones serves as a key intermediate in this reduction.
An Efficient and Practical Method for the Synthesis of 1-(2,6-Difluorobenzoyl)-3-(2-alkyl-3-oxopyridazin-4-yl)ureas as Potential Chitin Synthesis Inhibitors
A mild and efficient method for the synthesis of 4-amino-3(2 H )-pyridazinones from their corresponding 4,5-dichloropyridazinones under microwave-assisted conditions is described. A series of novel chitin synthesis inhibitors, benzoylphenylureas containing the 3(2 H )-pyridazinone, were synthesized. The biological activity of these target compounds was evaluated.
描述了一种在微波辅助条件下由其相应的4,5-二氯吡啶并酮合成4-氨基-3(2 H )-哒嗪酮的温和有效方法 。合成了一系列新型的几丁质合成抑制剂,含有3(2 H )-哒嗪酮的苯甲酰基苯基脲 。评价了这些目标化合物的生物活性。